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<a name="boost_regex.ref.syntax_option_type.syntax_option_type_literal"></a><a class="link" href="syntax_option_type_literal.html" title="Options for Literal Strings">Options
        for Literal Strings</a>
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<p>
          The following must always be set to interpret the expression as a string
          literal:
        </p>
<div class="informaltable"><table class="table">
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<th>
                  <p>
                    Element
                  </p>
                </th>
<th>
                  <p>
                    Standardized
                  </p>
                </th>
<th>
                  <p>
                    Effect when set
                  </p>
                </th>
</tr></thead>
<tbody><tr>
<td>
                  <p>
                    literal
                  </p>
                </td>
<td>
                  <p>
                    Yes
                  </p>
                </td>
<td>
                  <p>
                    Treat the string as a literal (no special characters).
                  </p>
                </td>
</tr></tbody>
</table></div>
<p>
          The following options may also be combined with the literal flag:
        </p>
<div class="informaltable"><table class="table">
<colgroup>
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                  <p>
                    Element
                  </p>
                </th>
<th>
                  <p>
                    Standardized
                  </p>
                </th>
<th>
                  <p>
                    Effect when set
                  </p>
                </th>
</tr></thead>
<tbody>
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<td>
                  <p>
                    icase
                  </p>
                </td>
<td>
                  <p>
                    Yes
                  </p>
                </td>
<td>
                  <p>
                    Specifies that matching of regular expressions against a character
                    container sequence shall be performed without regard to case.
                  </p>
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</tr>
<tr>
<td>
                  <p>
                    optimize
                  </p>
                </td>
<td>
                  <p>
                    Yes
                  </p>
                </td>
<td>
                  <p>
                    Specifies that the regular expression engine should pay more
                    attention to the speed with which regular expressions are matched,
                    and less to the speed with which regular expression objects are
                    constructed. Otherwise it has no detectable effect on the program
                    output. This currently has no effect for Boost.Regex.
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<td align="right"><div class="copyright-footer">Copyright © 1998-2013 John Maddock<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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